Nihon University professor and head of Nihon University Animal Medical Center Kazuya Edamura, 49, points to cat photos on a computer screen, which are used to train the AI of “CatsMe!”, an AI-driven smartphone application jointly developed by tech startup Carelogy and researchers at Nihon University that purports to tell when a cat is feeling pain, as he gives a lecture to students on diagnosing pain in cats, at the medical center in Fujisawa, south of Tokyo, Japan on June 11, 2024. (Photo by Issei Kato/Reuters)

Afghan bodybuilders compete in the Mr. Afghanistan bodybuilding competition in Kabul on July 10, 2024. (Photo by Wakil Kohsar/AFP Photo)

A boy plays in water from a broken fire hydrant in Rosemead, California on Saturday, May 10, 2025, seeking relief as spring heat breaks temperature records across the Southland. (Photo by Ringo Chiu/ZUMA Press Wire/Rex Features/Shutterstock)

A tiger plays in water at a tiger zoo in Chaing Mai, Thailand on March 31, 2021. (Photo by Soe Zeya Tun/Reuters)

Party-loving Brits headed out to enjoy the first weekend of indoor drinking in months; many – like these lasses in Liverpool on May 22, 2021 – were keen to make up for lost time. (Photo by London News Pictures)

American singer and songwriter Ava Max gestures as she arrives at the 2021 iHeartRadio Music Awards at Dolby Theatre in Los Angeles, California, U.S., May 27, 2021. (Photo by Mario Anzuoni/Reuters)

A lemur inspects a camera at Tarsus Nature Park in Mersin, Turkey on July 25, 2021. The population of lemurs, one of the inhabitants of Tarsus Nature Park, increases with new births every year. Lemurs are among the most interesting species in the zoo. (Photo by Serkan Avci/Anadolu Agency via Getty Images)

One-month-old cubs given birth by giant panda “Su Shan” are seen at Shenshuping giant panda base on August 17, 2021 in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province of China. (Photo by He Haiyang/VCG via Getty Images)